modulus

中文： 系数

1. The base with respect to which a congruence is computed.
2. The absolute value of a complex number.
3. A coefficient that expresses how much of a certain property is possessed by a certain substance.
4. A scalar field controlling the shape and size of extra dimensions in a compactification.
5. An operator placed between two numbers, to get the remainder of the division of those numbers.

复数 moduli